---
product_id: 111134610
title: "Hollow 3\" steel ball weldable DIY project component (5-pack)"
brand: "weldiy"
price: "€ 153.75"
currency: EUR
in_stock: true
category: "Weldiy"
url: https://www.desertcart.de/products/111134610-hollow-3-steel-ball-weldable-diy-project-component-5-pack
store_origin: DE
region: Germany
---

# Weldable low-carbon steel for DIY creativity 3" hollow steel ball, 1/8" thick Popular for fitness & ninja warrior grip tools Hollow 3" steel ball weldable DIY project component (5-pack)

**Brand:** weldiy
**Price:** € 153.75
**Availability:** ✅ In Stock

## Summary

> ⚡️ Ignite your DIY genius with these weldable steel spheres!

## Quick Answers

- **What is this?** Hollow 3" steel ball weldable DIY project component (5-pack) by weldiy
- **How much does it cost?** € 153.75 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/111134610-hollow-3-steel-ball-weldable-diy-project-component-5-pack)

## Best For

- weldiy enthusiasts

## Why This Product

- Trusted weldiy brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Multi-Pack Convenience:** Five pieces per pack to fuel multiple projects or large-scale builds
- • **Fitness & Design Fusion:** Ideal for crafting ninja warrior grips, fence post finials, or unique art installations
- • **Durable 1/8" Thick Metal:** Robust enough for functional and ornamental uses without excess weight
- • **Weld-Ready Low-Carbon Steel:** Designed for seamless welding to bring your creative visions to life
- • **Versatile 3" Hollow Steel Sphere:** Perfectly sized for custom DIY projects and decorative accents

## Overview

This 3-inch hollow steel ball pack features five weld-ready, low-carbon steel spheres with 1/8" thick walls, perfect for DIY enthusiasts and professionals crafting fitness tools, decorative fence post finials, or custom metal projects. Durable yet lightweight, these versatile components empower your creativity without limits.

## Description

3-in hollow steel ball manufactured from low-carbon steel, ready to weld. these are not precision ball bearings, these are hollow (1/8" thick steel) and meant for decorative or low-precision work.

## Features

- DIY welding project component - 3" hollow steel ball
- With a welder & imagination, you can build anything; we supply the hard to find components so nothing gets in your way
- 3" steel balls commonly used to make fitness & ninja warrior grip training tools
- 3" steel ball works well as a fence post finial or any decorative element in a project
- Leave a photo in your review and show us what you built using these 3 inch spheres

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07574JJ7Y |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #864,548 in Automotive ( See Top 100 in Automotive ) #814 in Arc Welding Equipment |
| Customer Reviews | 4.5 4.5 out of 5 stars (30) |
| Date First Available | August 29, 2017 |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 5 |
| Item Weight | 13 ounces |
| Item model number | 300BL-5 |
| Manufacturer | Columbus Design & Manufacturing, LLC |
| Material | Metal |
| Number Of Pieces | 5 |
| Part Number | 300BL-5 |
| Product Dimensions | 3 x 3 x 3 inches |
| Shape | Circular |

## Images

![Hollow 3" steel ball weldable DIY project component (5-pack) - Image 1](https://m.media-amazon.com/images/I/81ezBJScAAL.jpg)
![Hollow 3" steel ball weldable DIY project component (5-pack) - Image 2](https://m.media-amazon.com/images/I/71oXIVUbzHL.jpg)
![Hollow 3" steel ball weldable DIY project component (5-pack) - Image 3](https://m.media-amazon.com/images/I/81K3rnO+z3L.jpg)

## Questions & Answers

**Q: Are these available in stainless steel?**
A: No.

**Q: Are these available in 3/4"?**
A: 3" ball

**Q: How much does each sphere weigh?**
A: 13oz, just under 1 pound

**Q: Are these threaded? If so, what size screw?**
A: These are not threaded. They are hollow and are meant for welding.

## Frequently Bought Together

- Hollow 3" steel ball weldable DIY project component (5-pack)
- Hakko CHP-170 - Micro Soft Wire Cutter
- Thermaltronics TMT-TC-2 Tip Tinner (20g) in 0.8oz Container

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**Shop now:** [https://www.desertcart.de/products/111134610-hollow-3-steel-ball-weldable-diy-project-component-5-pack](https://www.desertcart.de/products/111134610-hollow-3-steel-ball-weldable-diy-project-component-5-pack)

---

*Product available on Desertcart Germany*
*Store origin: DE*
*Last updated: 2026-07-22*